I have a TD-Z 103H that I'm having a little trouble with. The screw on the palm side that is in the middle of the brake knob turns when I turn the brake knob. This causes the plate to loosen up when I loosen the brake and overtighten when I tighten the brake. Anybody have any idea about how to fix this?

when you tighten the screw down you can no longer adjust the mag. brake?

Pretty much. I can go left because it loosens the screw, but I can't go right because it is already tightened down and the dial won't move independently of the screw like it should.

I may have just noticed what the possible problem is. The brake dial washer part F63-7701 and key #6 on the 103h schematic is missing. Could that cause this problem?

That's more than likely your problem. Without that washer, the screw head is pinching down on the inside of the dial.

Yeah, I just stuck a little cardboard in to fill the space and see if that would alleviate the problem and it did, indeed. I just recently acquired the reel and it was missing so the guy I got it from is sending me a new washer.

If I were you I would forget about the washer, since you bought it used I 'd send it to a pro for general check-up, cleaning/oiling/greasing and being a TDZ ---> drag upgrade ( carbontex drag pads ) while you are it.

I've already installed the carbontex drag and cleaned, oiled, and greased it. I just didn't notice that was missing until I actually pulled it out later and noticed the screw was moving with the dial. That's when I pulled the plate back off and disassembled the knob and Magforce system to see what might be causing the problem. I then put it all back together using the schematic and noticed that little washer was missing.